Fits T3, T3/T4, T25, T28, GT25, GT28, GT30, GT32, GT35, GT37 Turbo Back Housings
Fits T3, T3/T4, T25, T28, GT25, GT28, GT30, GT32, GT35, GT37 Turbo Back Housings
Choose the stage that meets your power goals!
Serious engine oil cooling for the most demanding engines
This product was last offered at the strikethrough price on
05-06-2026
Version 1.
Serious engine oil cooling for the most demanding engines
Drop-in high flow replacement for your vehicle
This product was last offered at the strikethrough price on
03-16-2026
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.
Average gain of 40 HP & 75 LB-FT torque on 93 octane program!
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade can be performed via our Chip & Ship method or the vehicle can be brought to ECS Tuning's fa
Ship your ECU for free, or drive your vehicle to our location
For customers that already have APR software on their car and are upgrading to a K04
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade can be performed via our Chip & Ship method or the vehicle can be brought to ECS Tuning's fa
Ship your ECU for free, or drive your vehicle to our location
Brings true 2D mapped water-methanol injection delivery to your DI (direct fuel injected) and forced induction vehicle
Brings true 2D mapped water-methanol injection delivery to your EFI (Electronic Fuel Injected) and forced induction vehicle
Contains all of the hardware you need to install a new catalytic converter on your A4
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
05-02-2026
Required software to properly upgrade to a K04 turbocharger
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade must be performed at ECS Tuning's facility in Ohio.
This upgrade can only be performed with the car present at our facility.
Unlock 50-70 HP on your boosted vehicle while decreasing your air temps by up to 100 degrees! Stainless Steel Braided Line, 4AN Fittings, no tank included!
Get up to +34HP and +55lb-ft through a safe and easy to use tuning module from RaceChip
Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol.